CN108840702B

CN108840702B - Ceramsite containing gasification furnace slag and preparation method thereof

Info

Publication number: CN108840702B
Application number: CN201810910432.4A
Authority: CN
Inventors: 郭志国; 蔡宜东; 何薇; 魏永洋; 平倩; 王军岩
Original assignee: Xinjiang Tianwu Ecological Technology Co ltd
Current assignee: Xinjiang tianwu ecological environmental protection Co.,Ltd.
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-12-01
Anticipated expiration: 2038-08-10
Also published as: CN108840702A

Abstract

The invention belongs to the technical field of preparation or raw material treatment processes by taking fuel residues as batch materials, and discloses a ceramsite containing gasification furnace slag, which comprises the following raw materials in parts by mass: 50-70 parts of gasifier slag, 3-5 parts of adhesive and 4-7 parts of auxiliary agent, wherein the auxiliary agent is any one of silicon dioxide, fluorite or alumina. The preparation process includes crushing and sieving the material, mixing with adhesive and assistant, pelletizing in water to form raw material, stoving and calcining the raw material to form semi-finished product, and cooling to form haydite product. The invention solves the problem of environmental pollution caused by discarding and burying the gasification furnace slag in the prior art.

Description

Ceramsite containing gasification furnace slag and preparation method thereof

Technical Field

The invention belongs to the technical field of preparation or raw material treatment by using fuel residues as batch materials, and particularly relates to ceramsite containing gasification furnace slag and a preparation method thereof.

Background

Ceramsite is ceramic particles, most of which are round, oval spheres or irregular broken stones in appearance characteristics, and is widely applied to the field of buildings. The surface of the ceramsite is a layer of hard shell which is ceramic or enamel, has the functions of water and gas insulation and ensures that the ceramsite has higher strength.

At present, the preparation of the ceramsite mainly uses clay shale ceramic sand or fly ash ceramic sand as a raw material; the fly ash refers to fine ash collected in discharged flue gas in the electrical processing process. The fly ash pottery sand is used as a raw material, so that the waste of the fly ash can be utilized, the energy is saved, the environment pollution caused by the fly ash can be avoided, and the environment protection effect is realized. In the electric processing process, gasification furnace slag is generated, and if the gasification furnace slag is not reasonably utilized and discarded for landfill treatment, the environment is seriously polluted and a large amount of resources are wasted.

The gasification furnace slag is similar to the coal ash in structural components, but has obvious difference, the gasification furnace slag is a byproduct generated by coal in a high-temperature, high-pressure and weak-reducing atmosphere, and the coal ash is a byproduct generated by coal burning in a high-temperature oxidizing atmosphere, so that the internal structure and the component composition of the coal ash are different, and therefore, the gasification furnace slag is taken as a raw material to prepare the ceramsite, and the ceramsite containing the gasification furnace slag is provided.

Disclosure of Invention

The invention aims to provide ceramsite containing gasification furnace slag and a preparation method thereof, and aims to solve the problem of environmental pollution caused by discarding and burying of the gasification furnace slag in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme that the ceramic particle containing the gasification furnace slag comprises the following raw materials in parts by mass: 50-70 parts of gasifier slag, 3-5 parts of adhesive and 4-7 parts of auxiliary agent, wherein the auxiliary agent is any one of silicon dioxide, fluorite or alumina.

The invention also provides another basic scheme, and the preparation method of the ceramic particle containing the gasification furnace slag comprises the following steps:

crushing and screening the gasification furnace slag to ensure that the particle size of the gasification furnace slag is less than 2-4mm, and mixing the gasification furnace slag with an adhesive and an auxiliary agent to form a mixed material;

mixing the formed mixed material with water, wherein the weight ratio of the water to the mixed material is 1:1.5, and preparing the mixed material into raw materials with the diameter of 6-12mm by utilizing a granulator;

step three, drying the raw materials;

calcining the dried raw material by using a calcining device for 1-1.5h to form a ceramsite semi-finished product;

and step five, cooling the prepared ceramsite semi-finished product to normal temperature to form a ceramsite finished product.

The beneficial effects of this technical scheme do:

the gasification furnace slag is used as the main raw material for preparing the ceramsite, the gasification furnace slag can be utilized, the effect of changing waste into valuable is achieved, meanwhile, the environmental pollution is avoided, and the effect of environmental protection is achieved. Any one of silicon dioxide, fluorite or alumina is used as an auxiliary agent, so that the characteristic of brittleness of the gasified coal slag can be overcome, and the prepared ceramsite is prevented from being fragile; meanwhile, the adhesive is proportioned, so that the gasified coal cinder, the adhesive and the auxiliary agent have good bonding effect and are easy to mold, and the situation that the water absorption effect is poor due to no pores among the prepared ceramsite can be avoided.

The gasification furnace slag is ground into particles with the particle size of 2-4mm during preparation, and the characteristics of the gasification furnace slag belong to a porous structure, so that the prepared ceramsite has porous gaps inside, has a light effect, and the porous structure is favorable for improving the strength of the ceramsite. Through the stoving to the raw meal, can make the moisture in the raw meal give off partly, can avoid the broken condition of raw meal that the quick dehydration of raw meal leads to appear when calcining.

Further, the raw materials in parts by mass are as follows: 60 parts of gasifier slag, 4 parts of adhesive and 6 parts of auxiliary agent.

Has the advantages that: experiments prove that the ceramsite prepared from the raw materials in the proportion has high strength and light weight.

Further, the raw materials in parts by mass are as follows: 50 parts of gasifier slag, 3 parts of adhesive and 4 parts of auxiliary agent.

Has the advantages that: experiments prove that the ceramsite prepared from the raw materials according to the proportion has high strength.

Further, the raw materials in parts by mass are as follows: 70 parts of gasifier slag, 5 parts of adhesive and 7 parts of auxiliary agent.

Further, the adhesive is one or a mixture of two of clay and B4C modified phenolic resin adhesive.

Has the advantages that: experiments prove that the molding effect of the ceramsite is good, and the B4C modified phenolic resin adhesive can resist the high temperature of 1500 ℃, so that the situation that the adhesive is melted in the calcining process of the ceramsite can be avoided.

Further, the adhesive is a mixture of clay and a B4C modified phenolic resin adhesive, and the mass ratio of the clay to the B4C modified phenolic resin adhesive is 3: 1.

Has the advantages that: experiments prove that the crushing rate in the preparation process of the ceramsite is low.

Further, the drying temperature of the raw materials in the third step is 450-650 ℃.

Has the advantages that: the raw meal can be prevented from being broken in the drying process.

Further, in the fourth step, the calcination temperature is 1200-1300 ℃.

Has the advantages that: the calcination effect can be better.

Further, in the fifth step, the cooling comprises four stages, wherein the first stage is cooling at 800 ℃ of 500-.

Has the advantages that: the ceramic particle cooling device can realize slow cooling of ceramic particles, and avoid the situation that the calcined ceramic particles are broken due to fast cooling.

Drawings

FIG. 1 is a schematic view of a calcining apparatus according to the present invention;

FIG. 2 is a schematic view of the rotary valve of FIG. 1 engaged with a rack;

fig. 3 is a schematic structural view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a feeding pipe 1, an inclined section 11, a vertical section 12, a first T-shaped plate 13, a second T-shaped plate 14, a through hole 15, a connecting rod 16, a furnace body 2, a smoke guide port 21, a discharge port 22, a sleeve 3, a sliding plate 31, a smoke outlet 32, a smoke storage box 4, a guide pipe 41, a rotary valve 42, a gear ring 43, a rack 44, a supporting table 5, a flow guide table 51, a limiting ring 52, a limiting table 53, an air guide channel 54, a bearing net 6, a gas inlet pipe 7, an air inlet section 71, a mixing section 72, an air outlet section 73, a turbine 74, a blade 75, an air inlet pipe 8, an electromagnet 9, a first conducting strip 91 and a second conducting strip.

The ceramsite containing the gasification furnace slag comprises the gasification furnace slag, an adhesive and an auxiliary agent, wherein the adhesive is one or a mixture of two of clay or B4C modified phenolic resin adhesive, and the auxiliary agent is any one of silicon dioxide, fluorite or aluminum oxide.

The parameters of the embodiment of the present invention are shown in table 1:

TABLE 1

Now, a method for producing a ceramic particle containing a gasification slag according to the present invention will be described with reference to example 1.

A preparation method of ceramsite containing gasification furnace slag comprises the following steps:

step one, crushing the gasified slag by using a crusher to enable the grain size of the gasified slag to be smaller than 3mm for later use, and fully mixing the later-used gasified slag with a mixture of clay and a B4C modified phenolic resin adhesive to form a mixed material for later use.

And step two, mixing the mixed material with water in a weight ratio of 1:1, and preparing the mixed material mixed with the water into raw materials with the diameter of 10-12mm by utilizing a granulator.

And step three, drying the raw materials at the temperature of 610 ℃ for 10min, so as to preheat the raw materials and avoid the situation of raw material crushing caused by direct calcination of the raw materials.

And step four, calcining the dried raw material by using a calcining device, wherein the calcining temperature is 1280 ℃, the calcining time is 1.3h, and a ceramsite semi-finished product is formed after the calcining is finished.

Step five, cooling the prepared ceramsite semi-finished product, wherein the cooling is divided into four stages, the first stage is cooling at 700 ℃, and the cooling time is 11 min; the second stage is cooling at 360 deg.C for 8 min; the third stage is cooling at 130 deg.C for 15min, and the fourth stage is normal temperature cooling, and collecting the ceramsite after cooling to normal temperature to form ceramsite finished product.

And drying by using a calcining device in the third step, wherein the calcining device comprises a rack, a feeding pipe 1, a calcining part and an air inlet part which are sequentially fixed on the rack from top to bottom, the feeding pipe 1 comprises an inclined section 11 and a vertical section 12 communicated with the right end of the inclined section 11, and the left end of the inclined section 11 is a high end, as shown in figure 1.

Sliding connection has the first T template 13 that runs through the lateral wall on the slope section 11 and is located the second T template 14 of first T template 13 top on the slope section 11, first T template 13 and second T template 14 separate slope section 11 for sealed cavity, this sealed cavity is the stoving space, and first T template 13 and second T template 14 perpendicular to slope section 11, be fixed with connecting rod 16 between the top of first T template 13 and second T template 14, the part that first T template 13 and second T template 14 lower part are located outside slope section 11 is equipped with through-hole 15.

Calcining part includes furnace body 2 of top and 12 bottom intercommunications of vertical section, the bottom of furnace body 2 is equipped with some firearms, the bottom of 2 right side walls of furnace body is equipped with discharge gate 22, discharge gate 22 department threaded connection has sealed lid, the left side at 2 tops of furnace body is equipped with leads smoke mouth 21, furnace body 2 is gone up the top and is fixed with the sleeve 3 with leading smoke mouth 21 intercommunication, sliding connection has slide 31 in the sleeve 3, be fixed with the spring between slide 31 and the 2 tops of furnace body, the bottom of first T template 13 is located sleeve 3. A smoke outlet 32 is arranged on the left side wall of the sleeve 3 above the sliding plate 31, a smoke outlet one-way valve is arranged in the smoke outlet 32, and when the pressure in the sleeve 3 is increased, smoke in the sleeve 3 is discharged from the smoke outlet 32. The lower end of the first T-shaped plate 13 is located above the smoke outlet 32.

The smoke storage box 4 communicated with the smoke outlet 32 is fixed on the rack, a heat insulation layer is arranged on the outer wall of the smoke storage box 4, the smoke storage box 4 is communicated with the drying space through a guide pipe 41, a dust removal bag is arranged in the guide pipe 41, a rotary valve 42 is arranged on the guide pipe 41, as shown in a combined view in fig. 2, a gear ring 43 is arranged outside the rotary valve 42, and a rack 44 meshed with the gear ring 43 is arranged on the part, located below the through hole 15, of the second T-shaped plate 14.

The bottom of furnace body 2 is fixed with a supporting bench 5, and supporting bench 5 top is fixed with the water conservancy diversion platform 51 of taper, and 2 inner walls of furnace body are fixed with three from last to the bearing net 6 that sets gradually down, and bearing net 6 is the round platform form of inversion, and all wraps up outside supporting bench 5. The outer wall of the supporting table 5 is connected with three limiting tables 53 which can abut against the bottom ends of the three bearing nets 6 respectively in a sliding manner, the limiting tables 53 are in a circular table shape, three limiting rings 52 which are located below the three limiting tables 53 respectively are fixed on the periphery of the supporting table 5, and the limiting rings 52 are used for limiting the limiting tables 53 to slide downwards. The large-diameter end of the bearing net 6 is fixed on the inner wall of the furnace body, and the small-diameter end diameter of the limiting table 53 is larger than that of the bearing net 6.

The bottom of the limiting table 53 is provided with a magnet block, and the bottom of the furnace body 2 is provided with an electromagnet 9 for repelling the magnet block; a power supply is fixed at the top of the inclined section 11, as shown in fig. 3, the power supply is electrically connected with a first conductive sheet 91 fixed on the upper surface of the inclined section 11 and located below the first T-shaped plate 13, and a second conductive sheet 92 electrically connected with the electromagnet 9 is fixed at the bottom of the first T-shaped plate 13. When the first T-shaped plate 13 slides downwards to abut against the upper surface of the inclined section 11, the first conducting plate 91 is attached to the second conducting plate 92, the electromagnet 9 is communicated with a power supply and generates a magnetic field for repelling the magnet block, so that the limiting table 53 abuts against the bottom of the bearing net 6; when the first T-shaped plate 13 slides up, the first conductive plate 91 is separated from the second conductive plate 92, so that the electromagnet 9 is disconnected from the power supply, the magnetic field generated by the electromagnet 9 and repelling the magnet block disappears, and the limiting table 53 slides down.

The portion of admitting air includes that one end runs through a supporting bench 5 bottom and is located the gas intake pipe 7 of a supporting bench 5, and gas intake pipe 7 is located the outer one end and the gas pump intercommunication of a supporting bench 5. The gas inlet pipe 7 comprises an air outlet section 73, a mixing section 72 and an air inlet section 71 which are sequentially communicated from top to bottom, the air outlet section 73 is positioned in the support table 5, a plurality of air guide channels 54 which are used for communicating the air outlet section 73 with the furnace body 2 are arranged in the support table 5, air outlet one-way valves are arranged in the air guide channels 54, and when the pressure in the air outlet section 73 is increased, air is discharged through the air guide channels 54. The lower part of the mixing section 72 is communicated with an air inlet pipe 8, and the air inlet pipe 8 is communicated with an air pump.

A rotating shaft penetrating through the air inlet section 71 is rotatably connected in the air inlet section 71, and a turbine 74 is fixed on the part of the rotating shaft positioned in the air inlet section 71; the mixing section 72 is rotatably connected with a rotating shaft penetrating through the mixing section 72, a plurality of blades 75 are arranged outside the rotating shaft, and the rotating shaft are driven by a belt.

When the calcining device is used for drying and calcining, raw materials are put into the inclined section 11, slide along the inner wall of the inclined section 11 and are blocked by the second T-shaped plate 14. And then the gas pump and the air pump are started, the gas enters the mixing section 72 through the gas inlet section 71, and when the gas passes through the turbine 74, the turbine 74 is driven to rotate under the action of the gas flow, and the rotation of the blades 75 driven by the rotating shaft is realized through the belt transmission. Air enters the mixing section 72 through the air inlet pipe 8, is mixed with the air through the rotation of the blades 75, then enters the air outlet section 73, is discharged into the furnace body 2 through the air guide channel 54, and is ignited by starting the igniter, so that the preheating of the furnace body 2 is realized.

After the temperature of furnace body 2 rose, can produce steam and discharge into sleeve 3 through leading in smoke mouth 21 to upwards promote slide 31, after slide 31 was located outlet 32 top, the steam in the sleeve 3 passed through outlet 32 and discharged in storing up smoke box 4, along with the steam increase in storing up smoke box 4, the pressure increase in the smoke box 4. When the pressure difference between the two sides of the smoke outlet one-way valve is small, hot air does not enter the smoke storage box 4 any more, the pressure in the sleeve 3 is gradually increased again, and therefore the sliding plate 31 slides upwards under the action of the hot air and gradually abuts against the lower end of the first T-shaped plate 13 to push the first T-shaped plate 13 to move upwards and through the connection of the connecting rod 16, the second T-shaped plate 14 slides upwards together with the first T-shaped plate 13, and the through hole 15 is gradually communicated with the inclined section 11, so that raw materials enter the drying space through the through hole 15 in the second T-shaped plate 14. When the second T-shaped plate 14 slides upwards, the rack 44 moves upwards, so that the gear ring 43 rotates, thereby rotating and opening the rotary valve 42, discharging hot air into the drying space, and drying the raw materials.

After a period of time, the connecting rod 16 is manually extruded downwards, so that the connecting rod 16 drives the first T-shaped plate 13 and the second T-shaped plate 14 to slide downwards, the through hole 15 slides out of the inclined section 11 to block the raw materials, one part of the raw materials slides into the drying space, and the raw materials are dried by hot air in the leading-in drying space of the smoke storage box 4. Meanwhile, when the second T-shaped plate 14 slides downwards, the rotary valve 42 is reversely closed, and when the first T-shaped plate 13 moves downwards, the sleeve 3 is downwards extruded, so that the pressure in the sleeve 3 is increased, the hot air in the cigarette storage box 4 is reduced, the pressure is reduced, a larger pressure difference is generated between the sleeve 3 and the cigarette storage box 4, and the hot air in the sleeve 3 enters the cigarette storage box 4.

Along with in steam reentrant cigarette storage box 4 for the pressure difference between cigarette storage box 4 and the sleeve 3 reduces gradually, after steam in the sleeve 3 no longer gets into cigarette storage box 4, slide on the slide 31, drive first T template 13 and second T template 14 and slide on, make the raw material after the stoving through the through-hole 15 roll-off stoving space on the first T template 13, and slide to furnace body 2 in through vertical section 12, and the raw material that is blockked by second T template 14 then slides into in the stoving space through the through-hole 15 on the second T template 14 and dries.

The dried raw material enters the furnace body 2 and then falls onto the guide table 51, is guided by the guide table 51 and uniformly flows onto the bearing net 6 at the top. After the dried raw material slides out of the drying space, the connecting rod 16 is extruded, so that the first T-shaped plate 13 and the second T-shaped plate 14 slide downwards, the first conducting plate 91 is contacted with the second conducting plate 92, the electromagnet 9 is communicated with a power supply, the limiting table 53 slides upwards to be offset with the bearing net 6, and the raw material on the bearing net 6 at the top is supported.

When the sliding plate 31 drives the first T-shaped plate 13 and the second T-shaped plate 14 to slide upwards again, the first conductive sheet 91 is separated from the second conductive sheet 92, the electromagnet 9 is disconnected from the power supply, the limiting table 53 slides downwards under the action of the gravity of the limiting table 53 and the gravity of the raw material to abut against the limiting ring 52, so that the raw material slides along the side wall of the inclined limiting table 53, then falls onto the upper part of the bearing net 6 in the middle part, and slides downwards along the bearing net 6 in the middle part. During the process of the downward sliding of the raw material on the top bearing net 6, the dried raw material in the drying space enters the furnace body 2 again and falls onto the top bearing net 6, and the other part of the raw material enters the drying space. And then the connecting rod 16 is extruded to enable the first T-shaped plate 13 and the second T-shaped plate 14 to slide downwards, so that the blocking of the raw materials in the drying space is realized, and the upward sliding of the limiting table 53 is realized to support the raw materials in the furnace body 2.

And repeating the steps, and forming a ceramsite semi-finished product after the raw materials fall to the bottom of the furnace body 2 and are calcined, and taking out the ceramsite semi-finished product through the discharge hole 22.

The raw meal is dried and calcined by the calcining device, so that the following effects are achieved:

1. the hot air and the flue gas generated by the furnace body 2 are introduced into the drying space, so that the raw materials can be dried, and the heat can be reused;

2. the three bearing nets 6 are arranged, so that the raw materials can be gradually calcined, and compared with the method of directly pouring a large amount of raw materials into the furnace body 2, the method can avoid the phenomenon that the raw materials are not easy to separate due to agglomeration in the calcining process;

3. the three bearing nets 6 are arranged, so that the raw materials can be buffered, and compared with the method that the raw materials are directly poured into the furnace body 2, the raw materials pass through the three bearing nets 6, slide along the three bearing nets 6 and then fall to the bottom of the furnace body 2, so that the raw materials can be prevented from being crushed, and the crushing rate of ceramsite forming is reduced;

4. the raw meal can take place slight striking with bearing net 6 from last gliding in proper order in-process down for the raw meal takes place slight vibration, consequently when raw meal conglomeration, can realize the separation through slight vibration.

Example 1 differs from examples 2-8 only in the parameters shown in table 1.

Experiment:

the parameters of comparative examples 1 to 8 are shown in Table 2:

TABLE 2

Comparative example 1 differs from example 1 only in that the raw meal was not calcined using the calcination apparatus provided by the present invention; comparative examples 2 to 8 differ from example 1 only in the parameters shown in table 2.

Selecting 16 groups of raw materials, wherein each group of raw materials comprises 60kg of gasified filter residue, 3kg of clay, 1kg of B4C modified phenolic resin adhesive and 6kg of silicon dioxide, preparing the ceramsite by respectively utilizing the preparation methods of the ceramsite provided in examples 1-8 and comparative examples 1-8, and recording the following data:

A. recording the breaking rate (%) of the prepared ceramsite;

B. recording the agglomeration rate (%) of the prepared ceramsite;

C. 50 granules of each of the ceramsite materials provided in examples 1 to 8 and comparative examples 1 to 8 were selected, and 1kg of iron block was placed at a height of 5cm from the ceramsite material, and the iron block was loosened, and the amount (granules) of the crushed ceramsite was recorded.

The results of the experiment are shown in table 3:

TABLE 3

Therefore, the strength of the ceramsite containing the gasification furnace slag is high, the crushing rate and the agglomeration rate are low when the ceramsite is prepared by the preparation method of the ceramsite provided by the invention, the raw materials can be ensured to be slowly heated and calcined by calcining the ceramsite by using the calcining device, the raw materials are buffered by the bearing net when entering the furnace body, the raw materials can be prevented from directly falling to the bottom of the furnace body to cause breakage, and meanwhile, a large amount of raw materials are separated by the bearing net, so that the agglomeration of the raw materials can be reduced. Among them, the above-described respective effects of embodiment 1 are the best.

It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, which should not be construed as affecting the effectiveness of the application and the utility of the patent.

Claims

1. The ceramsite containing the gasification furnace slag is characterized by comprising the following raw materials in parts by mass: 50-70 parts of gasifier slag, 3-5 parts of adhesive and 4-7 parts of auxiliary agent, wherein the auxiliary agent is any one of silicon dioxide, fluorite or alumina;

the preparation method comprises the following steps:

step three, drying the raw materials;

the calcining device comprises a rack, a feeding pipe, a calcining part and an air inlet part, wherein the feeding pipe, the calcining part and the air inlet part are sequentially fixed on the rack from top to bottom;

the inclined section is connected with a first T-shaped plate penetrating through the upper side wall of the inclined section and a second T-shaped plate located above the first T-shaped plate in a sliding mode, the first T-shaped plate and the second T-shaped plate partition the inclined section into a sealed cavity, the sealed cavity is a drying space, the first T-shaped plate and the second T-shaped plate are perpendicular to the inclined section, a connecting rod is fixed between the top ends of the first T-shaped plate and the second T-shaped plate, and through holes are formed in the portions, located outside the inclined section, of the lower portions of the first T-shaped plate and the second T-shaped plate;

the calcining part comprises a furnace body with the top end communicated with the bottom end of the vertical section, an igniter is arranged at the bottom of the furnace body, a discharge port is arranged at the bottom of the right side wall of the furnace body, a sealing cover is in threaded connection with the discharge port, a smoke guide port is arranged on the left side of the top of the furnace body, a sleeve communicated with the smoke guide port is fixed at the top end of the furnace body, a sliding plate is connected in the sleeve in a sliding manner, a spring is fixed between the sliding plate and the top end of the furnace body; a smoke outlet is formed in the left side wall of the sleeve and positioned above the sliding plate, a smoke outlet one-way valve is arranged in the smoke outlet, and when the pressure in the sleeve is increased, smoke in the sleeve is discharged from the smoke outlet; the lower end of the first T-shaped plate is positioned above the smoke outlet;

a smoke storage box communicated with the smoke outlet is fixed on the frame, a heat insulation layer is arranged on the outer wall of the smoke storage box, the smoke storage box is communicated with the drying space through a guide pipe, a dust removal bag is arranged in the guide pipe, a rotary valve is arranged on the guide pipe, a gear ring is arranged outside the rotary valve, and a rack meshed with the gear ring is arranged at the part, located below the through hole, of the second T-shaped plate;

a supporting table is fixed at the bottom of the furnace body, a tapered flow guide table is fixed at the top of the supporting table, three bearing nets which are sequentially arranged from top to bottom are fixed on the inner wall of the furnace body, and the bearing nets are in an inverted round table shape and are all wrapped outside the supporting table; the outer wall of the supporting table is connected with three limiting tables which can respectively abut against the bottom ends of the three bearing nets in a sliding manner, the limiting tables are in a round table shape, three limiting rings which are respectively positioned below the three limiting tables are fixed on the periphery of the supporting table, and the limiting rings are used for limiting the limiting tables to slide downwards; the large-diameter end of the bearing net is fixed on the inner wall of the furnace body, and the diameter of the small-diameter end of the limiting table is larger than that of the small-diameter end of the bearing net;

the bottom of the limiting table is provided with a magnet block, and the bottom of the furnace body is provided with an electromagnet for repelling the magnet block; a power supply is fixed at the top of the inclined section, the power supply is electrically connected with a first conducting strip which is fixed on the upper surface of the inclined section and is positioned below the first T-shaped plate, and a second conducting strip which is electrically connected with the electromagnet is fixed at the bottom of the first T-shaped plate; when the first T-shaped plate slides downwards to abut against the upper surface of the inclined section, the first conducting plate is attached to the second conducting plate, the electromagnet is communicated with the power supply and generates a magnetic field for repelling the magnet block, and therefore the limiting table abuts against the bottom of the bearing net; when the first T-shaped plate slides upwards, the first conducting plate is separated from the second conducting plate, so that the electromagnet is disconnected from the power supply, the magnetic field generated by the electromagnet and repelling the magnet block disappears, and the limiting table slides downwards;

the gas inlet part comprises a gas inlet pipe, one end of the gas inlet pipe penetrates through the bottom of the support platform and is positioned in the support platform, and one end of the gas inlet pipe, which is positioned outside the support platform, is communicated with the gas pump; the gas inlet pipe comprises a gas outlet section, a mixing section and a gas inlet section which are sequentially communicated from top to bottom, the gas outlet section is positioned in the support table, a plurality of gas guide channels for communicating the gas outlet section with the furnace body are arranged in the support table, gas outlet one-way valves are arranged in the gas guide channels, and when the pressure intensity in the gas outlet section is increased, gas is discharged through the gas guide channels; the lower part of the mixing section is communicated with an air inlet pipe, and the air inlet pipe is communicated with an air pump;

a rotating shaft penetrating through the air inlet section is rotatably connected in the air inlet section, and a turbine is fixed on the part of the rotating shaft in the air inlet section; a rotating shaft penetrating through the mixing section is rotatably connected in the mixing section, a plurality of blades are arranged outside the rotating shaft, and the rotating shaft are driven by a belt;

2. The ceramsite containing the gasification slag according to claim 1, wherein the ceramsite comprises the following raw materials in parts by mass: 60 parts of gasifier slag, 4 parts of adhesive and 6 parts of auxiliary agent.

3. The ceramsite containing the gasification slag according to claim 1, wherein the ceramsite comprises the following raw materials in parts by mass: 50 parts of gasifier slag, 3 parts of adhesive and 4 parts of auxiliary agent.

4. The ceramsite containing the gasification slag according to claim 1, wherein the ceramsite comprises the following raw materials in parts by mass: 70 parts of gasifier slag, 5 parts of adhesive and 7 parts of auxiliary agent.

5. According to any of claims 1-4The ceramsite containing the gasification furnace slag is characterized in that: the adhesive is clay or B₄C, any one or a mixture of two of the modified phenolic resin adhesives.

6. The ceramsite containing gasification slag according to claim 5, wherein: the adhesive is clay and B₄C mixture of modified phenolic resin adhesive, clay and B₄The mass ratio of the C modified phenolic resin adhesive is 3: 1.

7. The ceramsite containing gasification slag according to claim 6, wherein: the drying temperature of the raw materials in the third step is 450-650 ℃.

8. The ceramsite containing gasification slag according to claim 7, wherein: in the fourth step, the calcination temperature is 1200-1300 ℃.

9. The ceramsite containing gasification slag according to claim 8, wherein: in the fifth step, the cooling comprises four stages, wherein the first stage is cooling at 500-.